Intel LGA1366 Stock Cooler: Good Enough?

Cooling
Viewing page 6 of 8 pages. Previous 1 2 3 4 5 6 7 8 Next

Stock Fan Measurements: Intel Core i7-920 Stock Cooler

Specifications: Intel Core i7-920 stock cooler fan
Manufacturer
Power Rating
?
Model Number
F10T12MS1Z7-64A011
Airflow Rating
?
Bearing Type
?
Speed Rating
?
Corners
N/A
Noise Rating
?
Frame Size
100 x 100 mm
Header Type
4-pin PWM
Fan Blade Diameter
87 mm
Starting Voltage
4.6 V
Hub Size
34 mm
Weight
110 g (including mounting frame)
Data in green cells provided by the manufacturer or observed; data in the blue cells were measured.

Stock Fan Measurements
Voltage
Speed
SPL @1m
12V
1980 RPM
27 dBA
10V
1680 RPM
21~22 dBA
9V
1530 RPM
19~20 dBA
8V
1340 RPM
16 dBA
7V
1150 RPM
13~14 dBA
6V
960 RPM
12~13 dBA
Measuring mic positioned 1m at diagonal angle from the intake side of the fan.
Ambient noise level: 11 dBA.

The i7-920 stock cooler fan is subpar acoustically speaking. At full speed it is loud, very turbulent and buzzy. At 9V, the buzzing disappears but is replaced by a tonal hum. At 8V the fan sounds bearable as no turbulence is audible at one meter's distance, though the humming remains. At 7V the fan is quiet, with the hum all but subdued, but close-up the fan's motor starts to click.


i7-920 stock cooler fan @9V. Note the tonal spike at ~500Hz.

Stock Fan Measurements: Intel Core i7-980X Stock Cooler

Specifications: Intel Core i7-980X stock cooler fan
Manufacturer
Power Rating
9.6 W
Model Number
F10T12MS2Z9-18A01A1
Airflow Rating
?
Bearing Type
?
Speed Rating
?
Corners
N/A
Noise Rating
?
Frame Size
N/A
Header Type
4-pin PWM
Fan Blade Diameter
99 mm
Starting Voltage
4.7 V
Hub Size
42 mm
Weight
110 g
Data in green cells provided by the manufacturer or observed; data in the blue cells were measured.

Stock Fan Measurements
Voltage
Speed
SPL @1m
12V (P)
2600 RPM
43 dBA
9V
2090 RPM
40~41 dBA
7V (Q)
1740 RPM
34 dBA
5V
1480 RPM
26 dBA
4.5V
1070 RPM
15 dBA
4V
800 RPM
12 dBA
Measuring mic positioned 1m at diagonal angle from the intake side of the fan.
Ambient noise level: 11 dBA.

The noise level of the i7-980X stock cooler is absolutely ridiculous, being atrociously loud until the fan is set to below 5V. At full speed it measures an earsplitting 43 dBA@1m and is tremendously turbulent and whiny. This dissipates slightly at 9V revealing a very nasty mid-to-high pitched tone. At 7V, the noise is less tonal, but still far too high. At 5V the fan buzzes and develops a noticeable drone. It finally becomes quiet at 4.5V, but at this level there is not enough airflow to mask a very grating, dry-sounding hum. At 4V, the motor is still audible with the hum deteriorating into a rattle. The built-in speed switch toggles the fan speed between 12V ('P' setting) and 7V ('Q' setting).


i7-980X stock cooler fan @5V. Tonal elements evident at multiple frequencies.



Previous 1 2 3 4 5 6 7 8 Next

Cooling - Article Index
Help support this site, buy from one of our affiliate retailers!
Search: